PHP Tutorial - PHP array_walk_recursive() Function
Definition
The array_walk_recursive() function runs a user-defined function on each array element including inner array.
Syntax
PHP array_walk_recursive() Function has the following syntax.
array_walk_recursive(array,myfunction,parameter...)Parameter
| Parameter | Is Required | Description |
|---|---|---|
| array | Required. | Array to walk on |
| myfunction | Required. | The name of the user-defined function |
| parameter,... | Optional. | Parameter to the user-defined function. You can assign one parameter to the function, or as many as you like. |
Example
Run user defined function on array element
<?php
function myfunction($value,$key){
echo "The key $key has the value $value<br>";
}
$a1=array("a"=>"PHP","b"=>"java2s.com");
$a2=array($a1,"1"=>"One","2"=>"Two");
array_walk_recursive($a2,"myfunction");
?>
The code above generates the following result.
